a 10% solution of formaldehyde in water; used as a disinfectant or to preserve biological specimens
造句
用作名詞(n.)
With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method. 用氯化鈣作沉淀劑，消除磷酸根離子的干擾，用甲醛法測定復合肥中的總氮。